A little girl plays with a 'My Friend Cayla' doll at a store in London, England. The doll, which uses Bluetooth technology to connect to Android and iOS devices, is on a warning list for potential toy hacking threats.
Photo: Rob Stothard/Getty Images

While internet-connected toys are particularly appealing to a generation of tech-obsessed kids, security experts warn against the potential dangers of some of these flashy gadgets, such as the Bluetooth-enabled “My Friend Cayla” doll, which uses speech recognition technology to recognize a child’s speech and hold a conversation.

In February, Germany’s telecommunications watchdog, the Federal Network Agency, called the doll an “illegal espionage apparatus” and told parents to immediately destroy it.

The doll, which is manufactured by the U.S. company Genesis Toys, violated the country’s regulation against wireless devices with hidden cameras or microphones. Hackers could easily access the doll via Bluetooth, listen in on conversations and even directly hold a conversation with the child playing with it, the Guardianreported.

In 2015, when Mattel rolled out its Wi-Fi enabled talking “Hello Barbie” doll, it was proven to be easily hackable. And in Norway, a consumer watchdog council said some smartwatches designed for children are vulnerable to hackers, according to Wired.com.

“These toys typically contain sensors, microphones, cameras, data storage components, and other multimedia capabilities—including speech recognition and GPS options,” the FBI wrote in July. “These features could put the privacy and safety of children at risk.”

While not every digitally connected toy is prone to be hacked, parents should heed warnings from security officials.